【摘要】 推进资源型城市转型升级、迈向绿色增长新阶段是实现高质量发展的重要路径。文章基于准实验设计，对2009-2020年资源型城市转型之于绿色增长效率的影响及作用机制进行实证检验发现，资源型城市转型政策对城市绿色增长效率有显著正向影响，但由于传统产能面临退出壁垒、新兴替代产业存在培育周期、政策执行效率较低等原因，其对绿色增长效率的影响存在一定时滞，自2016年开始政策效果逐渐增强。机制和异质性检验结果显示，资源型城市转型政策可以通过促进产业结构优化升级和缓解资源依赖度促进城市绿色增长效率的提升，且影响效应在衰退型城市最为明显，促进了衰退型城市的产业结构和资源依赖度的优化。进一步研究发现，从空间维度来看，资源型城市转型政策和绿色增长效率均具有显著空间溢出效应。为促进资源型城市绿色发展，有必要制定国家层面的长效扶持政策，助推可持续繁荣；重视产业结构优化与资源依赖度调整机制的协同作用；针对不同类型的资源型城市，因地制宜实行差异化转型。更多还原

【Abstract】 Promoting the transformation and upgrading of resource-based cities and moving towards a new stage of green growth are the key paths to achieving high-quality development.Based on a quasi-experimental design,empirical tests were conducted on the impact and mechanism of the transformation policy of resource-based cities on green-growth efficiency during 2009-2020.It is found that the transformation policy of resource-based cities has a significant positive impact on greengrowth efficiency.However,due to possible reasons such as exit barriers to traditional production capacity,incubation cycles of emerging alternative industries,and low policy implementation efficiency,the impact has a certain time lag,with the policy effect having gradually strengthened since 2016.The results of the mechanism and heterogeneity test show that the transformation policy of resource-based cities can promote the green-growth efficiency by optimizing the industrial structure and alleviating the resource dependence,and the most obvious effect is in declining cities,of which the policy promotes the optimization of industrial structure and adjustment of resource dependence.Further research reveals that from a spatial perspective,both the transformation policy and green-growth efficiency of resource-based cities demonstrate significant spatial spillover effects.To promote the green development of resource-based cities,it is necessary to formulate long-term support policies at the national level to promote sustainable prosperity,necessary to emphasize the synergistic mechanism effect of optimizing industrial structure and adjusting resource dependence and necessary to implement differentiated transformation strategies tailored to different types of resource-based cities.更多还原